HCR-HSI - Universal Square & Slip-in Type Damper

HMI HCR & HSI Series - Rectangular Universal Air Control Damper

SeriesHCR,
HCR Economizer & HSIare custom made universal motorized24Vac Air Control Dampers (also available as 120Vac), in a square or rectangular shape to the size and dimensions
required.NOTE: MOTOR IS MOUNTED ON THE SHORTEST SIDE UNLESS OTHERWISE SPECIFIED.

HCR - Rectangular Dampers(click on image to see larger view)6" - 36" in Width
Motor used is Size Dependant

TheHCR seriesfastens to a square or rectangular air duct in-line to control the flow
of air, partially or completely, depending on its mechanical setting. This damper may be ordered with two
differentonemotor types (depending on the size)or one of a variety ofBelimoactuators.

(click on image to see larger view)(click on image to see larger view)

HSI - Rectangular Dampers(click on image to see larger view)6" - 36" in Width
Motor used is Size Dependant

TheHSI series "Slip-in Type"is similar to the HCR but instead of connecting to two open ends of a
rectangular air duct it is designed to be an easier install for existing rectangular ducts.
To install only part of one side of the existing duct needs to be cut away allowing the HSI to
"Slip-in" the side making for a fast and easy installation solution for your rectangular damper
needs.

(click on image to see larger view) (click on image to see larger view)

Features of both the HCR and HSI Include:

Easy to install in-line as part of standard rectangular or
square air duct.

Durable, patentedHMI HOYME 'spring motor drive' with nylon
bearings.

26 ga. galv. steel is standard however other sizes and weight of
steel can be used upon request.

These dampers can be used for the new ventilation code which
requires a designated exhaust fan, a centrally located switch marked 'VENTILATION' and a fresh air intake
damper, all interconnected to the furnace circulation fan.SeeHMI Interface Relay Adaptors'which have been specially designed for these dampers and new
ventilation codes.

Series HCR and HSI dampers are spring returned with a Power Open or
Power Closed configuration (some exceptions for dampers using specific Belimo Actuators).

HCR - Economizer Damper(click on images to see larger view)Typically 6" - 36" in Width
Motor used is Size Dependant

TheHCR Economizer Damper seriesfastens to a square or rectangular air duct in-line to control the flow
of fresh air with an air conditioner. The Damper closes when the outside tempurature is higher than 55 degrees F. and
opens when lower than 55 degrees F.

(click on image to see larger view)

OPERATION OF THE AIR CONDITIONER ECONOMIZER

Thermostat Cooling Cycle – power is supplied to AC ‘Y’
from thermostat ‘Y’.

When outside temperature is higher than 55 degrees F:

a) Thermo switch is open
b) Fresh Air Damper is closed
c) End Switch is closed
d) Air Conditioner is running.

When outside temperature is lower than 55 degrees F:

a) Thermo switch is closed
b) Fresh Air Damper is open
c) End Switch is open
d) Air Conditioner is idle.